Kyle and his brother have a marble set. of the marbles 12 are blue this represents 50/100of all the marbles. what decimal is equivalent to 50/100?

What is the volume of the cone to the nearest cubic millimeter? (use π  = 3.14) a) 46 mm3 b) 128 mm3 c) 183 mm3 d) 275 mm3 diameter = 5 mm height = 7 mm how do you do this problem step by step?